Learn How Do I Delete Messages Or A Conversation: Deleting messages on Facebook Messenger is easy but certainly not as easy as deleting your email. Facebook hopes to keep your conversation and Facebook Chat intact. In order to delete messages on Facebook, you'll need to:

Open the individual message.

Go to options and start selecting the message you wish to delete.

If you have many messages, the process can take a lot of time. Luckily, you can simply remove the messages from the message list, but doing this will not remove the message permanently. Instead it will be archived, and will reappear when the person starts a fresh conversion via Facebook messenger..